Privacy Policy and Important Notices
Updated: Monday, 15-Dec-2008 16:03:12 EST
Description: For all navigable file types, the coast function can add a graphics coastline on the current or specified window.
For navigable file types which are in an IDL recognized map projection more coast options are available such as a solid continental mask, political boundaries, rivers, US states, etc. The data types which are currently recognized IDL projections are: SeaDAS Mapped files, loaded SeaWiFS L3-binned files and SeaWiFS SMI products. In addition, all navigable input data can be recognized as an IDL projection if projected with the mapimg function after loading.
[Interactive mode][Command mode]
Usage: coast, fbuf=fbuf, color=color, mlinestyle=mlinestyle, mlinethick=mlinethick, merge_mode=merge_mode, hires=hires, idl_opts=idl_opts, fill_continents=fill_cont, /continents, /coasts, /countries, /USA, /rivers, spacing=spacing, orientation=orientation, rate=rate, help=help
Examples:
| fbuf | Window number(default is current window). |
| color | 1 to 7 of the SeaDAS graphics palette (default is 1). |
| mlinestyle | 0
= solid (default)
1 = dotted 2 = dashes 3 = dash-dot 4 = dash 3 dot 5 = long dashes |
| mlinethick | Line thickness. 1 to 10. (Default=1) |
| merge_mode | 0
= replace all current bitmap graphics with this coast
1 = overlay on top of any existing bitmap graphics (Default) 2 = underlay coast under any existing bitmap graphics 3 = erase all bitmap graphics, redraw new coastline and overlay last gridlines specified. |
| hires | 0
= Use low resolution CIA database (~10 KM).
1 = Use high resolution CIA database (~1KM). (Default is dependent on file type) |
| help | Print out usage message. |
Keywords for data displayed in a recognized IDL map projection:
| idl_opts | IDL
coast options:
|
| spacing | applicable to FILL_CONTINENTS=2 option only. Spacing (in cm) between the fill lines. |
| orientation | applicable to FILL_CONTINENTS=2 option only. Line angle (in degrees) of the fill lines. |
Keywords for non-IDL mapped file types. Currently this would include files using SeaWiFS navigation (L1A, L1B and L2), CZCS and OCTS files:
| rate | CIA database sampling rate.(default is file-dependent). |
Description: There are two separate sets of options that appear in the Coastline Setup Widget, depending on the navigation type of the file displayed. Most navigable files will have coastline only options:
Files which IDLrecognizes
as IDL-mapped files(currently only the SeaDAS mapped files) have in addition
filled continents, political boundaries, rivers, etc:
Selecting Setups->Coast within the Display Window Widget will bring up either of the coast setup widgets which contain all the coast options. Some of the defaults (such as CIA DB resolution) are set on an image-by-image basis. You do not need to use the setup widget in order to drop a default coastline. Simply select Functions->Coast.
Action items:
Options for all navigated files:
| Color | The color of the coastline. Click the mouse on the graphics color bar to specify a different color. | ||||||||
| Modify | Bring up the widget to allow modification of the graphics color hues. Once modified, the changes will apply to all currently displayed images. | ||||||||
| Line Thickness | The line thickness of the coastline. | ||||||||
| Line Style | The line style of the coastline (solid, dots, dashes, dash-dot, dash 3 dots,long dash) | ||||||||
| CIA DB Resolution | Whether to use the high resolution or low resolution coastline database. An intelligent default is set on an image-by-image basis. | ||||||||
| Graphics Apply Mode |
|
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| Apply | Apply the coastline graphics to the current window, using the options above. | ||||||||
| Quit | Exit the coastline widget. All settings will be retained the next time the coast setup widget is opened. |
Options for non-IDL mapped files only:
| CIA DB Sample Rate | The sampling rate to use when accessing the coastline database. An intelligent default is set on an image-by-image basis. |
Options for IDL mapped files only:
| Mapping Options |
|
| Line Fill Spacing (cm) | Only active for Continents (Line Fill) Mapping Option. The spacing between lines. |
| Line Fill Angle | Only active for Continents (Line Fill) Mapping Option. The angle of the lines. |
Privacy Policy and Important Notices
Updated: Monday, 15-Dec-2008 16:03:12 EST